EDIT..
Sri Guy's.. Garry noticed a faux pas on the AUK's.. a layer had magically reappeared :o :brick: I've reuploaded with the same filename (removes Jack near the FD windows) ;-)
Also.. one more.. this time from Janes Aviation. A no nonsense, workmanlike plain white for G-BEYK circa early 90's ;-) Janes Aviation

One Herald service I recall from Gatwick in the late 70's to some time in the very early 80's was a LFAT (Le Touquet) service. I cannot recall the frequency of flights but the departure out of Gatwick would climb towards Mayfield (MAY VOR) to 6000ft probably then direct Le Touquet. This was known as the Non Standard Le Touquet Departure, not surprisingly, there being SIDS's for all other deps from KK. There was also a 'Non Standard WOD' Departure (Woodley) which I think was a Herald but I cannot recall where it went, perhaps EGGP
The last HP'7s from Gatwick operated I believe to the Channel Islands with Channel Express (callsign Channex, this became Jet2, did this operator merge into jet2?). My old flying instructor appeared one night in the Flight Clearance office where I worked, flying the Herald out that night. It went tech., never saw Dave again! I think he graduated to DHL 72's out of EBBR.
There is still a Herald at the far end of Gatwick in the trees, a glimpse inside the open cockpit window reminded me of an Avro Lancaster cockpit!